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When a computer does not recognize an internal modem， a technician should determine whether：（）
- A、the modem is seated properly.
- B、the number being dialed is valid.
- C、there are resource conflicts.
- D、there is power to the modem.
- E、the modem speaker is enabled.
参考答案
更多 “When a computer does not recognize an internal modem， a technician should determine whether：（）A、the modem is seated properly.B、the number being dialed is valid.C、there are resource conflicts.D、there is power to the modem.E、the modem speaker is enabled.” 相关考题
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多选题When a computer does not recognize an internal modem， a technician should determine whether：（）Athe modem is seated properly.Bthe number being dialed is valid.Cthere are resource conflicts.Dthere is power to the modem.Ethe modem speaker is enabled.
考题
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考题
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考题
单选题During the modem boot process，how does the modem acquire the downstream channel？（）A
The modem is commanded by the CMTS to set to the specific channelB
The modem uses the default value in the broadcom chipsetC
The modem tuner sets a level as defined by the DOCSIS specificationD
The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered
考题
单选题If a technician suspects that the voltage being delivered to a desktop computer’s power supply is insufficient or incorrect, which device should be used to determine the correct voltage?（）A
A power supply testerB
A multimeterC
A loopback adapterD
A cable tester
考题
单选题Which of the following is the proper order for powering off and on network components?（）A
Computer cable modem routerB
Cable modem router computerC
Cable modem computer routerD
Router cable modem computer
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